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Focal Length Practice Test
•2 QuestionsQuestion
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Q1
A certain farsighted person cannot focus on objects closer to his eyes than 
. What focal length eyeglass lenses are needed in order to focus on a newspaper held at 
 from the person's eyes, if the glasses are worn 
 from his eyes?
A certain farsighted person cannot focus on objects closer to his eyes than . What focal length eyeglass lenses are needed in order to focus on a newspaper held at 
 from the person's eyes, if the glasses are worn 
 from his eyes?